Metric Throttle Tamer with NEIL'S DIAMOND GRIPS by G2 Ergonomics Cure's that "snatchy", jerky throttle feel on your Metric V-Twin! Machined in the USA from self-lubricating Black Delrin material! Drastically improves your abillity to modulate throttle control. See fitments in product description Right & left side grips included! No modifications required